Where Did Viruses Come From?
Season 1 Episode 45 | 7m 29s Video has closed captioning.
There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they’ve infected. Including you. This molecular fossil trail can help us understand where viruses came from, how they evolved and it can even help us tackle the biggest question of all: Are viruses alive?
Problems Playing Video? | Closed Captioning